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| author | Namhyung Kim <namhyung@kernel.org> | 2014-08-12 17:16:05 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-13 17:28:07 -0300 |
| commit | 701937bd59cc94b6913086feb62f05ae565ff2de (patch) | |
| tree | e4697966dfad8a3ea43f060e03469d0905d95869 /tools/perf/util/hist.c | |
| parent | edd114e213751c3274891f692be66eb65771f278 (diff) | |
| download | linux-701937bd59cc94b6913086feb62f05ae565ff2de.tar.gz linux-701937bd59cc94b6913086feb62f05ae565ff2de.tar.bz2 linux-701937bd59cc94b6913086feb62f05ae565ff2de.zip | |
perf top: Fix -z option behavior
The current -z option does almost nothing. It doesn't zero the existing
samples so that we can see profiles of exited process after last
refresh. It seems it only affects annotation.
This patch clears existing entries before processing if -z option is
given. For this original decaying logic also moved before processing.
Reported-by: Stephane Eranian <eranian@google.com>
Tested-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1407831366-28892-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/hist.c')
| -rw-r--r-- | tools/perf/util/hist.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 30df6187ee02..86569fa3651d 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -277,6 +277,28 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel) } } +void hists__delete_entries(struct hists *hists) +{ + struct rb_node *next = rb_first(&hists->entries); + struct hist_entry *n; + + while (next) { + n = rb_entry(next, struct hist_entry, rb_node); + next = rb_next(&n->rb_node); + + rb_erase(&n->rb_node, &hists->entries); + + if (sort__need_collapse) + rb_erase(&n->rb_node_in, &hists->entries_collapsed); + + --hists->nr_entries; + if (!n->filtered) + --hists->nr_non_filtered_entries; + + hist_entry__free(n); + } +} + /* * histogram, sorted on item, collects periods */ |